Laser Quenching equipment
Perform phase transformation hardening treatment on the metal surface to improve the hardness, wear ...
Perform phase transformation hardening treatment on the metal surface to improve the hardness, wear ...
Used for surface strengthening, repair, and remanufacturing of components, the coating has high adhe...
Flexible processing of complex curved sheet metal parts, with high cutting accuracy, fast speed, and...
Specially designed for seamless welding of precision plastic components, with a small heat affected ...
The present invention provides a method for preparing high wear-resistant ball valves based on high-speed laser cladding technology. Firstly, a 0.2mm thick Ni-Cr-B-Si transition layer is melted onto the surface of the ball valve substrate; Then, a WC/Co high hardness alloy layer with a thickness of 1.0-1.5mm is precisely deposited on the transition layer, with a WC content of 50% -60% and a particle size of 15-45 μ m; Finally, a wide spot laser was used to scan and remelt the functional layer, improving the surface roughness from Ra12.5 μ m to Ra3.2 μ m. This technology solves the problems of preheating (300-400 ℃) and easy cracking in traditional laser cladding of high wear-resistant alloy layers. A high-quality cladding layer without cracks can be obtained at room temperature, with a hardness of HRC65 or above, which increases the service life of ball valves in media containing solid particles by 5-8 times.
